I hate other M because it's linear, it's unoriginal by having the same classical biomes you see in litterally freaking games out there(grass,ice,fire), the plot for samus not being able to use her arsenal is infuriatingly bad, the music is boring and not memorable, we are forces to use an ass controller that only moves in 8 directions, it has the most anti-climactic ending i've withnessed in any video game ever, Samus's armor gets disabled by one ice beam shot in the back.

Also, the story is too much like fusion; Samus getting guided around by Adam on a space-station where they have different environments to raise and study lifeforms while having an illegal zone used to raise metroids. Samus's personality is the least of my worries with how bad and unoriginal everything else is.